Table 1. Biosocial and military features of soldiers.
| Deployed soldiers (n = 1483) | Control group (n = 889) | Test* | |||||||||||
| ntotal | n | % | W % | ntotal | n | % | W % | p-value | |||||
| Sex | |||||||||||||
| Male | 1483 | 1439 | 97.0 | 94.8 | 889 | 779 | 87.6 | 95.5 | 0.499 | ||||
| Female | 44 | 3.0 | 5.2 | 110 | 12.4 | 4.5 | |||||||
| Age, M (SD) | 1483 | 29.6 (7.3) | 30.8 (7.7) | 889 | 26.1 (6.7) | 30.8 (7.7) | 0.103 | ||||||
| 18 to 24 | 398 | 26.8 | 20.2 | 476 | 53.4 | 28.0 | 0.018 | ||||||
| 25 to 29 | 555 | 37.4 | 37.3 | 284 | 32.0 | 37.3 | |||||||
| 30 to 39 | 349 | 23.5 | 26.7 | 69 | 7.8 | 19.1 | |||||||
| ≤ 40 | 181 | 12.2 | 15.9 | 60 | 6.8 | 15.6 | |||||||
| BMI, M (SD) | 1476 | 25.5 (2.9) | 25.4 (2.9) | 885 | 25.0 (3.2) | 26.0 (3.2) | 0.617 | ||||||
| Level of schooling | |||||||||||||
| General secondary school (Hauptschule) | 1483 | 275 | 18.5 | 15.9 | 889 | 182 | 20.5 | 18.2 | 0.391 | ||||
| Intermediate secondary school (Realschule) | 961 | 64.8 | 66.2 | 541 | 60.9 | 62.1 | |||||||
| University preparatory high school, specialized college | 247 | 16.7 | 17.9 | 166 | 18.7 | 19.8 | |||||||
| Marital status | |||||||||||||
| Single | 1483 | 960 | 64.7 | 59.9 | 887 | 719 | 81.1 | 66.3 | 0.138 | ||||
| Married | 449 | 30.3 | 34.8 | 149 | 16.8 | 28.6 | |||||||
| Separated/widowed/divorced | 5.0 | 5.3 | 19 | 2.1 | 5.1 | ||||||||
| Children | |||||||||||||
| Yes | 516 | 34.8 | 38.9 | 889 | 177 | 19.9 | 36.3 | 0.399 | |||||
| Rank | |||||||||||||
| Lower ranks | 1483 | 533 | 35.9 | 24.5 | 889 | 246 | 28.0 | 33.5 | 0.008 | ||||
| Intermediate ranks | 799 | 53.9 | 62.7 | 565 | 64.0 | 55.5 | |||||||
| Higher ranks (Officer) | 151 | 10.2 | 12.8 | 78 | 8.8 | 11.0 | |||||||
| Type of unit | |||||||||||||
| Combat unit | 1478 | 616 | 41.7 | 25.0 | 881 | 158 | 18.0 | 21.1 | 0.006 | ||||
| Medical services | 67 | 4.5 | 6.6 | 77 | 8.7 | 8.2 | |||||||
| Other | 795 | 53.8 | 68.3 | 646 | 73.0 | 70.6 | |||||||
| Branch | |||||||||||||
| Army | 1481 | 995 | 67.2 | 57.8 | 881 | 434 | 49.0 | 61.3 | 0.623 | ||||
| Air force | 384 | 25.9 | 32.7 | 346 | 39.0 | 30.4 | |||||||
| Marines | 1 | 0.1 | 0.1 | 2 | 0.2 | 0.3 | |||||||
| Joint Support Service | 33 | 2.2 | 2.8 | 32 | 3.6 | 2.2 | |||||||
| Medical services | 68 | 4.6 | 6.7 | 67 | 7.6 | 5.8 | |||||||
BMI, body mass index; W %, weighted percentage; M, mean; SD, standard deviation
Soldiers deployed overseas adjusted to feature distribution in the total population; for the control group. the weighted data shown are adjusted to soldiers deployed overseas.
*For categorical variables: design-based test of independence (adjusted data), for dimensional variables: t-test. reliable estimate of standard error (adjusted data) using Huber–White sandwich matrix
N.B.:
Please note that due to weighting factors and varying conventions for data evaluation there are some minor differences between the figures shown here and an earlier presentation (press conference of 23 March 2011, Berlin).